Originally Posted by reechy

1) you're overtraining one muscle group. i would do 4 chest exercises at the most in one workout session. example:

- flat, barbell
- incline, dumbbell
- flies, cable
- decline, barbell

2) use the pyramid method. example with beginner weights:

set 1: 65lbs x 12 reps
set 2: 95lbs x 10 reps
set 3: 115lbs x 8 reps
set 4: 135lbs x 6 reps

3) make sure you're getting a full range of motion from start to finish

4) i think 1-2 min between sets is fine.